package com.srini.servlets;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.srini.util.Constants;

/**
 * Servlet implementation class LogoutServlet
 */
public class LogoutServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	/**
	 * @see HttpServlet#HttpServlet()
	 */
	public LogoutServlet() {
		super();
	}

	@Override
	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		doPost(request, response);
	}

	@Override
	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {

		HttpSession session = request.getSession();

		if (session != null) {
			session.removeAttribute(Constants.LOGGEDIN_USER);
			session.invalidate();
		}
		request.getRequestDispatcher("/login.jsp").forward(request, response);

	}

}
